BIOS 1715 Lab 2

Question 1

What are Nodes shown by

Answer 1

Letters on most trees

Question 2

Monophyletic

Answer 2

Includes ancestors and all its descendants

Question 3

Paraphyletic

Answer 3

Includes common ancestor but NOT all its descendants

Question 4

Polyphyletic

Answer 4

Does not include common ancestor

Question 5

Derived Character

Answer 5

A trait found in a group that is not found in their ancestral group

Question 6

Homoplasy

Answer 6

A trait shared between two groups that is NOT inherited from their common ancestor

Question 7

Synapomorphy

Answer 7

A trait that is derived from the most recent common ancestor

Question 8

Phylum Porifera Example

Answer 8

Sponges

Question 9

Phylum Porifera Tissue Layers:

Answer 9

None

Question 10

Phylum Porifera Defining Characteristics

Answer 10

No tissues or organs, pore-bearing

Question 11

Phylum Cnidaria Example

Answer 11

Jellyfish

Question 12

Phylum Cnidaria Tissue Layers:

Answer 12

ectoderm and endoderm

Question 13

Phylum Cnidaria Symmetry:

Answer 13

Radial

Question 14

Phylum Cnidaria Coelom:

Answer 14

Acoelomate (have no body cavity)

Question 15

Phylum Cnidaria Defining Characteristics:

Answer 15

Tentacles with stinging cells called nematocysts

Question 16

Phylum Platyhelminthes Example:

Answer 16

Flatworms

Question 17

Phylum Platyhelminthes Tissue Layers:

Answer 17

Ectoderm, endoderm, and mesoderm

Question 18

Phylum Platyhelminthes Symmetry:

Answer 18

Bilateral

Question 19

Phylum Platyhelminthes Coelom:

Answer 19

Acoelomate (have no body cavity)

Question 20

Phylum Platyhelminthes Development:

Answer 20

Protostome

Question 21

Phylum Platyhelminthes Defining Characteristics:

Answer 21

Dorso-ventrally flattened worms

Question 22

Phylum Nematoda Example:

Answer 22

Roundworms

Question 23

Phylum Nematoda Tissue Layers:

Answer 23

Ectoderm, endoderm, and mesoderm

Question 24

Phylum Nematoda Symmetry:

Answer 24

Bilateral

Question 25

Phylum Nematoda Coelom:

Answer 25

Pseudocoelomate (Body cavity not entirely lined by mesoderm)

Question 26

Phylum Nematoda Development:

Answer 26

Protostome

Question 27

Phylum Nematoda Defining Characteristics:

Answer 27

Smooth, round-bodied worms with tapered ends

Question 28

Phylum Annelida Example:

Answer 28

Segmented worms

Question 29

Phylum Annelida Tissue Layers:

Answer 29

Ectoderm, endoderm, and mesoderm (triploblastic)

Question 30

Phylum Annelida Symmetry:

Answer 30

Bilateral

Question 31

Phylum Annelida Development:

Answer 31

Protostome

Question 32

Phylum Annelida Defining Characteristics:

Answer 32

Segmented Worms

Question 33

Phylum Mollusca Example :

Answer 33

Octopus

Question 34

Phylum Mollusca Tissue Layers:

Answer 34

Ectoderm, endoderm, and mesoderm

Question 35

Phylum Mollusca Symmetry:

Answer 35

Bilateral

Question 36

Phylum Mollusca Coelom:

Answer 36

Coelomate (have a true cavity)

Question 37

Phylum Mollusca Development:

Answer 37

Protostome

Question 38

Phylum Mollusca Defining Characteristics:

Answer 38

Mantle, muscular foot

Question 39

Phylum Arthropoda Examples:

Answer 39

Insects, Crustaceans, Crayfish

Question 40

Phylum Arthropoda Tissue Layers:

Answer 40

Ectoderm, endoderm, and mesoderm

Question 41

Phylum Arthropoda Symmetry:

Answer 41

Bilateral

Question 42

Phylum Arthropoda Coelom:

Answer 42

Coelomate

Question 43

Phylum Arthropoda Development:

Answer 43

Protostome

Question 44

Phylum Arthropoda Defining Characteristics:

Answer 44

Jointed appendages, chitinous exoskeleton

Question 45

Phylum Echinodermata Example

Answer 45

Starfish, Sea Urchins

Question 46

Phylum Echinodermata Tissue Layers:

Answer 46

Ectoderm, endoderm, and mesoderm

Question 47

Phylum Echinodermata Symmetry:

Answer 47

Bilateral and secondary pentaradial

Question 48

Phylum Echinodermata Coelom:

Answer 48

Coelomate

Question 49

Phylum Echinodermata Development:

Answer 49

Deuterostome

Question 50

Phylum Echinodermata Defining Characteristics:

Answer 50

Spiny skin with endoskeleton, water vascular system